Digi's XBee ZigBee Cloud Kit is now stocked by Mouser. It include
everything needed to create a cloud connected wireless prototype.

It includes an XBee gateway which allows Zigbee connectivity to Ethernet and
Wi-Fi. It also includes an XBee-PRO Zigbee 2.4GHz module, a development
board, prototyping components, and sample web applications which run on
Heroku.